In the process of recombinant DNA technology, the isolated foreign DNA is inserted into another DNA molecule known as

Options

A. DNA vector
B. RNA vector
C. protein vector
D. cloning vector

Answer

To answer the question, "In the process of recombinant DNA technology, the isolated foreign DNA is inserted into another DNA molecule known as," follow these steps:

### Step-by-Step Solution:

1. **Understanding Recombinant DNA Technology**:
- Recombinant DNA technology involves combining DNA from different sources to create new genetic combinations that are of value to science, medicine, agriculture, and industry.

2. **Identifying the Role of Foreign DNA**:
- In this process, foreign DNA (which is DNA that comes from a different organism) is isolated and needs to be inserted into another DNA molecule for cloning or expression.

3. **Defining the Term 'Vector'**:
- A vector is a DNA molecule used to carry foreign genetic material into another cell. It acts as a vehicle for transferring the foreign DNA into a host organism.

4. **Types of Vectors**:
- There are various types of vectors, including plasmids, bacteriophages, and artificial chromosomes. However, in the context of recombinant DNA technology, the term commonly used is "cloning vector."

5. **Cloning Vector**:
- A cloning vector is specifically designed to facilitate the cloning of DNA fragments. It allows for the insertion of the foreign DNA and ensures its replication within a host cell.

6. **Insertion and Replication**:
- The process involves using restriction enzymes to cut both the foreign DNA and the cloning vector at specific sites. The foreign DNA is then inserted into the cloning vector using DNA ligase, which seals the DNA fragments together.

7. **Outcome**:
- Once the recombinant DNA is formed, it is introduced into a suitable host cell where it can replicate, producing multiple copies of the foreign DNA.

### Conclusion:
- The isolated foreign DNA is inserted into another DNA molecule known as a **cloning vector**.